Cutting holes in ships&#39; walls



W. J. JONES. CUTTING HO LES IN SHIPS WALLS. APPLICATION FILED DEC-24, 19x9.

1,351,518, PatentedAug. 31,1920. v 6 v Irma/1 5);

UNITEDASTATES PATENT, OFFICE..-

' WALTER J. JONES, 01' NEW YORK, N. Y., ASSIGNOR TO B. CHICHESTER, LEIGHTON P.

STBA'DLEY, AND HARRY A. STONE, TRUSTEES UNDER A MASSACHUSETTS TRUST.

CUTTING HOLES m SHIPS WALLS.

Specification of Letters Patent. Patented Aug. 31, 1920.

Application filed December 24, 1919. Serial No. 347,222.

To all whom it may concern:

Be it known that I, WALTER J. JoNns,.a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Cutting Holes in Ships Walls, of which the following is a specification.

The principal ob'ect of the present invention' is to provide for rapidly cutting holes or openings of various sizes under water in the wall, side or other part of a ship in order to' provide for drainage or for the attachment of lifting cables or their attaching means.

The invention will be claimed at the end hereof, but will be first described in connection with the accompanying drawings forming part hereof and in wh1ch igure 1, is a side view, partly in section, of electrical hole cutting apparatus embodying features of the invention.

ig. 2, is a perspective view of the front of the same.

Fig. 3, is a side view illustrating a detail of construction.

Fig. 4 is a similar modification, and I Fig. 5, is a front view illustrating a modification.

In the drawings 1, is a chamber open on one face and hence called cup-shaped. This cup-shaped chamber 1, is adjusted to a portion of the outer face of a ships wall or side A, which may have been previously sand blasted or otherwise cleaned, if necessary. For this purpose use ma be made of a view illustrating a packing 2, and of a han e 3', and of an electro-magnet 4, energized from above the water level or otherwise by suitable leads 5 and 6, and adapted to hold the chamber onto the wall A. 8, is an intake to the interior of the chamber from an air or. like'line 9,

which may extend to above the water level. 10, is 'an outlet from the interior of. the chamber 1, and it is shown as equipped with an'outwardly openin check-valve 11. The purpose is to keep t e atmosphere in the interior of the chamber 1, appropriate for the work to be done and free from steam. 12, is an electrode of generally ring form as shown in Figs. 1 and 2, and of double ring form as shown in Fig. 5, although the form is not essential. The working rim of this electrode 12, is provided with points or projections as shown in Figs. 3 and 4, and the electrode 12, is provided with a hand piece 13, working through a packed opening in the handle 3, and solicited or biased outwardly by a spring 14. 15, is a supply cable for the electrode 12.'

In use an arc travels from point to point ofthe electrodes and in that Way a hole corresponding in shape to the rim of the electrode is rapidly out in the wall. The hand piece 13, serves for manipulating the elec trode to strike and maintain the arc and the connections 9 and 10, provide an appropriate atmosphere andexpel water and steam from the interior of the chamber 1, which is held onto the wall A, by the electromagnet 4. w

I claim:

1. Apparatus for cutting holes in submerged ships walls comprising the combination of a cup-shaped chamber, holding-on electro-magnets for the chamber, inlet and outlet connections for the interior of the chamber, and an electrode mounted in the chamber, substantially as described. 7

2. Apparatus for cuttin holes in submerged ships walls comprising the combination of a cup shaped chamber, holding-on electro-magnets forthe chamber, inlet and outlet connections for the interior of the chamber, and an electrode provided with high and low parts and 'mounted in the chamber, substantially as described.

3. A paratus for cutting holes in submerge ships walls comprising the combination of a cup-shaped chamber, holding-on electro-magnets for the chamber, inlet and outlet connections for the interior of the chamber, and an electrode provided with a rim having points and mounted in the'cham- 1 her, substantially as described. 

